<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Casso_Note</title>

    <style>
        html,
        body {
            margin: 0 !important;
            padding: 0;
            border: 0;
        }
    </style>
</head>

<body>
    <div id="app"></div>
</body>

</html>